- fix unworkable hotkeys broken in r4588
- add hotkeys: A-F for HEX, Enter for getting result and Delete to resent number
- instantly update display when press +,-,/,*
Board: move boardlog.txt to /tmp0
Eskin: refactor and optimize code
git-svn-id: svn://kolibrios.org@7431 a494cfbc-eb01-0410-851d-a64ba20cac60
